Four motion-picture films prepared by, or in the possession of, the University Film Foundation will be released during the coming month. The first of these, a film entitled "Grass," taken in the wilderness of central Asia, will be shown at the Harvard Union on Tuesday, February 10, at 8 o'clock in the evening.

"Grass" is a story of the annual migrations of the central Asiatic tribes over the mountain ranges and river valleys to the plains, where grass, the means of livelihood, is obtained.

Two presentations of "The Adventures of Prince, Achmed," in the Fogg Art Museum, will follow on Saturday, February 14. This picture, which is a fantasy in silhouette form, was prepared with great care by Lotte Reiniger, a well-known German artist, who drew approximately 300,000 individual silhouettes to complete the film.

Two more films, prepared under the auspices of the University Film Foundation, will be released later in the month. The first of these, entitled, "Citizenship," shows the interdependence of civilization in general, how agriculturalists depend upon manufacturers, cities upon the farmer, and vice versa. The second, "Rice's Amazon," is an all-talking picture featuring the quest for the source of the Amazon River, under the guidance of Hamilton Rice, a well-known traveller and explorer.